Canada's approach of delaying and even mixing different COVID-19 vaccine doses may seem unorthodox on the surface, but multiple experts say they're rooted in decades of science, backed up by emerging research, and could be preventing deaths.
Canada's approach of delaying and even mixing different COVID-19 vaccine doses may seem unorthodox on the surface, but multiple experts say they're rooted in decades of science, backed up by emerging research, and could be preventing deaths.
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